The Oakland Raiders are conducting a clinic on how to build a losing franchise. Here are some of the lessons.

First, hire a new coach every other season.

Second, re-sign a good, not great, injury-prone defensive tackle (Tommy Kelly) to a $50 million, seven-year deal with $18 million guaranteed as he recovers from an ACL tear.

Third, sign a solid, but injury-prone safety (Gibril Wilson) to a six-year, $39 million deal with $16 million in guaranteed money.

Fourth, there’s the deal with the underachieving tackle from San Francisco (Kwame Harris), another $16 million over three years.

Finally, sign a wide receiver with multiple knee issues who caught seven passes in the last five games of the season last year after missing most of it due to the injury and who reportedly still might need microfracture surgery (Javon Walker) to a $55 million, six-year deal with $16 million guaranteed.

Any questions?

It’s almost as though the Raiders are trying to find as many injury prone dogs as possible to force Lane Kiffin into an unwinnable situation so they can replace him too. Hmmm.